The Public Service Alliance of Canada says nearly 500 civilian workers at military bases in Ontario and Quebec are poised to go on strike Monday.

The workers deliver food, recreation, community and financial services to military members and veterans.

The union says its members are paid significantly less than workers doing similar jobs in the core federal public service and have been without a contract since 2002.

They are seeking fair wages, a national pay grid and better job security.

The bases affected include Ottawa, Petawawa, Kingston, Valcartier, Montreal St-Jean and Bagotville.